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CEN/TS 17703:2022

Plant biostimulants - Determination of chromium(VI)

General information
Valid from 01.04.2022
Base Documents
CEN/TS 17703:2022
Directives or regulations
None
Standard history
Status
Date
Type
Name
01.04.2022
Main
This document was developed to provide a method for verifying that hexavalent chromium (CrVI) is not present in plant biostimulants in a concentration that exceeds the respective limits outlined in the EU Regulation on Fertilising Products [1]. This document is applicable to all types of plant biostimulants (solid and liquid ) used in agriculture. The method described is suitable to quantify the chromium(VI) content in plant biostimulants down to 2 mg/kg. The results obtained from this method are strictly dependent on the extraction conditions. Results obtained by using other extraction procedures (extraction solution, pH, extraction time, etc.) are not comparable with the results produced by the procedure described in this document.
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